Temperature Effects on the Zeta Potential

Lopez Valdivieso, A. et al.. Temperature effect on the zeta potential and fluoride adsorption at the cz-Ah( )7ac UC(iLis solution interface, 7. Colloid Interf. Sci., 298, 1, 2006. 

Temperature Effects on the Zeta Potential, Fig. 2 Schematic diagram of experimental setup. MicroChannel chip placed directly on a hot plate surface and platinum electrodes inserted vertically into reservoirs. Voltage drop measured across a resistor in series with the microchaimel was used to calculate current flow in the electric circuit... 

Temperature Effects on the Zeta Potential, Fig. 3 Schematic diagram of the current-monitoring method used to measure zeta potential (Q. As time increases, a higher-concentration buffer displaces a lower-concentration version of the same buffer solution. 

Temperature Effects on the Zeta Potential, Table 1 Summary of measured zeta potential results ... 

Temperature Effects on the Zeta Potential, Figure 3 Schematic diagram of the current-monitoring method used to measure zeta potential (f). As time increases, a higher-concentration buffer displaces a lower-concentration version of the same buffer solution. Consequently, the electrical current passing through the channel increases, f can be calculated by using the time required for the displacement process (the sloped portion of the current-time curve) in the Smoluchowski equation... 

Temperature Effects on the Zeta Potential, Figure 4 Zeta potential measurements as a function of liquid temperature for a number of commonly-used solutions (O) 10 mM KCI, ( ) 1XTBE, (A) 1XTE, and (o) lOmM Na2C03/NaHC03. All values are for PDMSiGlass microchannels and are normalized to the zeta potential measured at 30° C... 

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